New thoughts on how carbonates record global carbon cycle
When scientists want to study Earth's very ancient geological past—typically greater than 100 million years ago—they often turn to rocks called carbonates.
When scientists want to study Earth's very ancient geological past—typically greater than 100 million years ago—they often turn to rocks called carbonates.
Earth Sciences
Nov 11, 2019
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Solving a decades-old mystery, Stanford researchers have discovered proteins that enable hardy microbes called archaea to toughen up their membranes when waters are overly warm. Finding these proteins could help scientists ...
Earth Sciences
Oct 7, 2019
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103
A new radioactivity model of Earth's ancient rocks calls into question current models for the formation of Earth's continental crust, suggesting continents may have risen out of the sea much earlier than previously thought ...
Earth Sciences
Jul 1, 2019
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Twenty thousand years ago, in the thick of an Ice Age, Earth looked very different. Because water was locked up in glaciers hundreds of feet thick, which stretched down over Chicago and New York City, the ocean was smaller—shorelines ...
Earth Sciences
May 24, 2019
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2113
When it comes to making a lasting impression in geological history, the medium makes all the difference, especially in the Earth's paleo-oceans. Here, during the Archean Eon (4,000-2,500 million years ago) and at times during ...
Earth Sciences
May 13, 2019
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89
The 5.4 million-square-mile Antarctic Ice Sheet is the greatest mass of fresh water on Earth. If it all were to melt, it would raise global sea levels some 220 feet. Searching for answers to how fast the ice might react to ...
Earth Sciences
Mar 25, 2019
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Scientists are peeking into ancient oceans to unravel the complexities of mass extinctions, past and future. A new examination of Earth's largest extinction by scientists at the California Academy of Sciences and the University ...
Ecology
Mar 14, 2019
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Oxygen in the form of the oxygen molecule (O2), produced by plants and vital for animals, is thankfully abundant in Earth's atmosphere and oceans. Researchers studying the history of O2 on Earth, however, know that it was ...
Earth Sciences
Feb 25, 2019
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Around 4 billion years ago there lived a microbe called LUCA: the Last Universal Common Ancestor. There is evidence that it could have lived a somewhat 'alien' lifestyle, hidden away deep underground in iron-sulfur rich hydrothermal ...
Evolution
Dec 18, 2018
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464
A new investigative technique has shown the latitudinal distribution of ice-rich landforms on Mars. This large-scale study enables future, more detailed investigations to study several young deposits of ice and sediment in ...
Space Exploration
Oct 8, 2018
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